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Explorator de Cifre Pi (π).
Obține primele N cifre din Pi, caută cifra de la orice poziție, caută o secvență de numere în Pi și descarcă cifrele ca fișier text.
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Rezultatele se actualizează pe măsură ce tastați.
Cum se folosește
Positions count the digits AFTER the decimal point: in 3.14159…, position 1 is 1, position 2 is 4 and position 3 is 1. The leading 3 is the whole-number part and has no position.
This page carries the first 10,000 decimal digits of Pi. They are computed exactly with arbitrary-precision integer arithmetic, so every digit shown is correct.
Pi is irrational: its digits never end and never settle into a repeating pattern, so 22/7 and 3.14 are approximations, not exact values.
Întrebări frecvente
What are the first 10 digits of Pi?
Pi to 10 decimal places is 3.1415926535. The full value is 3.14159265358979323846… — Pi is irrational, so the digits continue forever without ever repeating. This page shows up to 10,000 exact decimal digits.
Does position 1 mean the 3 or the 1?
Position 1 is the first digit AFTER the decimal point, so position 1 = 1, position 2 = 4, position 3 = 1, position 4 = 5. The leading 3 is the whole-number part and has no position. This is the convention used by every major Pi digit table, and it is the one this tool uses.
Can I find my birthday or phone number in Pi?
Often, yes — use the search mode. A 4-digit sequence like 0704 almost always appears within the first 10,000 digits, and 6-digit sequences usually do too. Longer strings may need millions of digits. If a sequence is not found here, it simply does not occur in the first 10,000 digits; it may still appear later.
How accurate are these digits?
Every digit is exact. They were computed with arbitrary-precision integer arithmetic using Machin's formula and verified against an independent higher-precision run, so there is no floating-point rounding anywhere in the dataset.
Why is Pi not just 22/7?
22/7 equals 3.142857…, which matches Pi only to two decimal places. Pi is irrational — it cannot be written as any fraction of two whole numbers — so 22/7, 355/113 and 3.14 are all approximations. 355/113 is the most accurate simple one, correct to six decimal places.
How do I save the digits to a file?
Choose how many digits you want, then click 'Download as .txt'. The file is built in your browser and includes a header noting the digit count and the position convention, so nothing is uploaded anywhere.